American Airlines flights from Houston to Ontario

Recent searches for flights from Houston to Ontario

Aug 2026
From$266*
Updated: 6 hours ago
Round tripIEconomy
Sep 2026
From$266*
Updated: 6 hours ago
Round tripIEconomy
Oct 2026
From$277*
Updated: 6 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $266
cmp-daily-histogram-bars-legend-max-price-aria-label $1.0K
Displaying fares for August-2026
  • IAH–ONT, 08/05/26 – 08/12/26: From $1,003
    05

    We

    AUG

  • IAH–ONT, 08/06/26 – 08/13/26: From $1,048
    06

    Th

  • IAH–ONT, 08/07/26 – 08/14/26: From $1,028
    07

    Fr

  • IAH–ONT, 08/08/26 – 08/15/26: From $843
    08

    Sa

  • IAH–ONT, 08/09/26 – 08/16/26: From $977
    09

    Su

  • IAH–ONT, 08/10/26 – 08/17/26: From $1,010
    10

    Mo

  • IAH–ONT, 08/11/26 – 08/18/26: From $732
    11

    Tu

  • IAH–ONT, 08/12/26 – 08/19/26: From $732
    12

    We

  • IAH–ONT, 08/13/26 – 08/20/26: From $860
    13

    Th

  • IAH–ONT, 08/14/26 – 08/21/26: From $860
    14

    Fr

  • IAH–ONT, 08/15/26 – 08/22/26: From $732
    15

    Sa

  • IAH–ONT, 08/16/26 – 08/23/26: From $794
    16

    Su

  • IAH–ONT, 08/17/26 – 08/24/26: From $794
    17

    Mo

  • IAH–ONT, 08/18/26 – 08/25/26: From $444
    18

    Tu

  • IAH–ONT, 08/19/26 – 08/26/26: From $444
    19

    We

  • IAH–ONT, 08/20/26 – 08/27/26: From $444
    20

    Th

  • IAH–ONT, 08/21/26 – 08/28/26: From $492
    21

    Fr

  • IAH–ONT, 08/22/26 – 08/29/26: From $444
    22

    Sa

  • IAH–ONT, 08/23/26 – 08/30/26: From $550
    23

    Su

  • IAH–ONT, 08/24/26 – 08/31/26: From $444
    24

    Mo

  • IAH–ONT, 08/25/26 – 09/01/26: From $277
    25

    Tu

  • IAH–ONT, 08/26/26 – 09/02/26: From $277
    26

    We

  • IAH–ONT, 08/27/26 – 09/03/26: From $325
    27

    Th

  • IAH–ONT, 08/28/26 – 09/04/26: From $373
    28

    Fr

  • IAH–ONT, 08/29/26 – 09/05/26: From $266
    29

    Sa

  • IAH–ONT, 08/30/26 – 09/06/26: From $416
    30

    Su

  • IAH–ONT, 08/31/26 – 09/07/26: From $429
    31

    Mo

  • IAH–ONT: cmp-view-offers-disclaimer. Find Offers
    01

    Tu

    SEP

  • IAH–ONT: cmp-view-offers-disclaimer. Find Offers
    02

    We

  • IAH–ONT: cmp-view-offers-disclaimer. Find Offers
    03

    Th

  • IAH–ONT, 09/04/26 – 09/11/26: From $391
    04

    Fr

    • range$266-$1,048

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Houston to Ontario flights

    $
    keyboard_arrow_down

    Houston (IAH)to

    Ontario (ONT)
    09/05/26 - 09/12/26

    Round trip

    Economy

    from
    $266Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    08/29/26 - 09/05/26

    Round trip

    Economy

    from
    $266Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    09/08/26 - 09/15/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    Houston (IAH)to

    Ontario (ONT)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 6 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Houston to Ontario

    Looking for lower fares on your trip from Houston to Ontario? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Houston to Ontario